Electrocardiographic manifestations: acute inferior wall myocardial infarction

Rotondo, Noelle; Pollack, Marc; Chan, Theodore C.; Brady, William J.; Harrigan, Richard A.

doi:10.1016/j.jemermed.2004.01.012

Cited by 8 publications

(2 citation statements)

References 33 publications

(54 reference statements)

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“…Less commonly, RV infarction results from occlusion of a dominant LCX in the setting of acute lateral wall MI; less than 10%, of RV infarctions arise from LAD occlusion in acute anterior wall MI [10]. Rarely, isolated RV infarction originates from non-dominant RCA occlusion or marginal branch occlusion of the RCA [10,11]. In patients with RCA dominant circulation or co-dominant circulation, which occurs in about 90%, their RCA perfuses the right ventricle, inferior-wall left ventricle and the lower part of the intraventricular septum.…”

Section: Discussionmentioning

confidence: 99%

Features of electrocardiogram in patients with stenosis of the proximal right coronary artery

Koh

Lee

Jeong

et al. 2017

Korean J Intern Med

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Background/AimsPrediction of lesions of the proximal right coronary artery (pRCA) through electrocardiogram (ECG) is very important because pRCA occlusion has many complications and a high mortality rate, which has frequently been related with right ventricular infarction. The purpose of this study was to devise a screening tool that takes into account multiple leads from a 12-lead ECG to predict the pRCA lesion.MethodsA hundred and fifty-eight patients who were diagnosed as acute coronary syndrome and had a pure lesion of RCA or left circumf lex artery (LCX) by ECGs and angiographic findings were enrolled retrospectively. Forty-eight patients with a pure pRCA occlusion were compared to a control group of 110 patients who were diagnosed as having either a pure mid to distal RCA lesion (57 patients) or a pure LCX lesion (53 patients).ResultsECGs of patients in the pRCA group showed more prominent ST depression in lead I (p = 0.001) and ST elevation in V1 (p = 0.002) than in the control group. The combination of ST depression (≤ 0 mm) in I and ST elevation (> 0.5 mm) in V1 was the best diagnostic tool (area under the curve, 0.84).ConclusionsST changes in leads V1 and I allow more accurate prediction of pRCA occlusion than other criteria, such as the difference between ST elevation of leads II and III or vector direction and amplitude. These variables could help to screen for right ventricular infarction before performing reverse ECG and predicting prognosis.

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Section: Discussionmentioning

confidence: 99%

Features of electrocardiogram in patients with stenosis of the proximal right coronary artery

Koh

Lee

Jeong

et al. 2017

Korean J Intern Med

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“…Acute inferior wall myocardial infarction (MI) is the most common transmural myocardial infarction seen in the Emergency Department (ED) (1). There are a variety of associated electrocardiographic manifestations in patients with acute inferior wall MI.…”

Section: Introductionmentioning

confidence: 99%